[root@mlz boot]# pacman --sync --refresh
:: Synchronizing package databases...
 current                   69.7K 1050.6K/s 00:00:00 [#####################] 100%
error: could not extract /var/lib/pacman/current//acl-2.2.44-1/desc: Can't update time for /var/lib/pacman/current/acl-2.2.44-1/desc: Function not implemented
error: failed to update current (unexpected system error)
 extra                    271.3K    2.0M/s 00:00:00 [#####################] 100%
error: could not extract /var/lib/pacman/extra//3ddesktop-0.2.9-2/depends: Can't update time for /var/lib/pacman/extra/3ddesktop-0.2.9-2/depends: Function not implemented
error: failed to update extra (unexpected system error)
 community                295.4K    3.3M/s 00:00:00 [#####################] 100%
error: could not extract /var/lib/pacman/community//855resolution-0.4-5/desc: Can't update time for /var/lib/pacman/community/855resolution-0.4-5/desc: Function not implemented
error: failed to update community (unexpected system error)
error: failed to synchronize any databases

[root@mlz boot]# pacman -S gnome
error: could not open file /var/lib/pacman/current//acl-2.2.44-1/depends: No such file or directory
error: could not open file /var/lib/pacman/community//855resolution-0.4-5/depends: No such file or directory
error: could not open file /var/lib/pacman/extra//3ddesktop-0.2.9-2/desc: No such file or directory
error: could not open file /var/lib/pacman/current//acl-2.2.44-1/depends: No such file or directory
error: could not open file /var/lib/pacman/community//855resolution-0.4-5/depends: No such file or directory
error: 'gnome': not found in sync db

[root@mlz boot]# pacman -Ss gnome
error: could not open file /var/lib/pacman/current//acl-2.2.44-1/depends: No such file or directory
error: could not open file /var/lib/pacman/extra//3ddesktop-0.2.9-2/desc: No such file or directory
error: could not open file /var/lib/pacman/community//855resolution-0.4-5/depends: No such file or directory